CVE-2023-6355

Name: CVE-2023-6355
Creator: NVD / NIST
Published: 2023-12-18T22:15:10.54+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.8/10EPSS 0.35%

Last modified Jun 17, 2026

CVE-2023-6355 is a medium-severity vulnerability rated 6.8/10 on the CVSS scale. Incorrect selection of fuse values in the Controller 7000 platform allows an attacker to bypass some protection mechanisms to enable local debug. This issue affects: Gallagher Controller 7000 9.00 prior to vCR9.00.231204b (distributed in 9.00.1507 (MR1)), 8.90 prior to vCR8.90.231204a (distributed in 8.90.1620 (MR2)), 8.80 prior to vCR8.80.231204a (distributed in 8.80.1369 (MR3)), 8.70 prior to vCR8.70.231204a (distributed in 8.70.2375 (MR5)). . EPSS estimates a 0.35% chance of exploitation in the next 30 days.

Description

Incorrect selection of fuse values in the Controller 7000 platform allows an attacker to bypass some protection mechanisms to enable local debug. This issue affects: Gallagher Controller 7000 9.00 prior to vCR9.00.231204b (distributed in 9.00.1507 (MR1)), 8.90 prior to vCR8.90.231204a (distributed in 8.90.1620 (MR2)), 8.80 prior to vCR8.80.231204a (distributed in 8.80.1369 (MR3)), 8.70 prior to vCR8.70.231204a (distributed in 8.70.2375 (MR5)).

Metrics

CVSS 3.1

6.8/10

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.35%

27.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Gallagher	Controller 7000 Firmware	>= 8.70, < 8.70.231204a
Gallagher	Controller 7000 Firmware	>= 8.80, < 8.80.231204a
Gallagher	Controller 7000 Firmware	>= 8.90, < 8.90.231204a
Gallagher	Controller 7000 Firmware	>= 9.00, < 9.00.231204b

References

https://security.gallagher.com/Security-Advisories/CVE-2023-6355Vendor Advisory
https://security.gallagher.com/Security-Advisories/CVE-2023-6355Vendor Advisory

Timeline

Published: Dec 18, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-6355?

How severe is CVE-2023-6355?

CVE-2023-6355 has a CVSS score of 6.8/10 (MEDIUM severity). The EPSS model estimates a 0.35% probability of exploitation in the next 30 days.

How do I fix CVE-2023-6355?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-6355?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST